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Diffstat (limited to 'arch/blackfin/kernel/cplbinfo.c')
-rw-r--r--arch/blackfin/kernel/cplbinfo.c35
1 files changed, 19 insertions, 16 deletions
diff --git a/arch/blackfin/kernel/cplbinfo.c b/arch/blackfin/kernel/cplbinfo.c
index 64d78300dd0..5b80d59e66e 100644
--- a/arch/blackfin/kernel/cplbinfo.c
+++ b/arch/blackfin/kernel/cplbinfo.c
@@ -2,6 +2,7 @@
* arch/blackfin/kernel/cplbinfo.c - display CPLB status
*
* Copyright 2004-2008 Analog Devices Inc.
+ *
* Licensed under the GPL-2 or later.
*/
@@ -16,8 +17,13 @@
#include <asm/cplbinit.h>
#include <asm/blackfin.h>
-static char const page_strtbl[][3] = { "1K", "4K", "1M", "4M" };
-#define page(flags) (((flags) & 0x30000) >> 16)
+static char const page_strtbl[][4] = {
+ "1K", "4K", "1M", "4M",
+#ifdef CONFIG_BF60x
+ "16K", "64K", "16M", "64M",
+#endif
+};
+#define page(flags) (((flags) & 0x70000) >> 16)
#define strpage(flags) page_strtbl[page(flags)]
struct cplbinfo_data {
@@ -111,24 +117,19 @@ static const struct seq_operations cplbinfo_sops = {
.show = cplbinfo_show,
};
+#define CPLBINFO_DCPLB_FLAG 0x80000000
+
static int cplbinfo_open(struct inode *inode, struct file *file)
{
- char buf[256], *path, *p;
- unsigned int cpu;
- char *s_cpu, *s_cplb;
+ char cplb_type;
+ unsigned int cpu = (unsigned long)PDE_DATA(file_inode(file));
int ret;
struct seq_file *m;
struct cplbinfo_data *cdata;
- path = d_path(&file->f_path, buf, sizeof(buf));
- if (IS_ERR(path))
- return PTR_ERR(path);
- s_cpu = strstr(path, "/cpu");
- s_cplb = strrchr(path, '/');
- if (!s_cpu || !s_cplb)
- return -EINVAL;
+ cplb_type = cpu & CPLBINFO_DCPLB_FLAG ? 'D' : 'I';
+ cpu &= ~CPLBINFO_DCPLB_FLAG;
- cpu = simple_strtoul(s_cpu + 4, &p, 10);
if (!cpu_online(cpu))
return -ENODEV;
@@ -139,7 +140,7 @@ static int cplbinfo_open(struct inode *inode, struct file *file)
cdata = m->private;
cdata->pos = 0;
- cdata->cplb_type = toupper(s_cplb[1]);
+ cdata->cplb_type = cplb_type;
cplbinfo_seq_init(cdata, cpu);
return 0;
@@ -168,8 +169,10 @@ static int __init cplbinfo_init(void)
if (!cpu_dir)
return -ENOMEM;
- proc_create("icplb", S_IRUGO, cpu_dir, &cplbinfo_fops);
- proc_create("dcplb", S_IRUGO, cpu_dir, &cplbinfo_fops);
+ proc_create_data("icplb", S_IRUGO, cpu_dir, &cplbinfo_fops,
+ (void *)cpu);
+ proc_create_data("dcplb", S_IRUGO, cpu_dir, &cplbinfo_fops,
+ (void *)(cpu | CPLBINFO_DCPLB_FLAG));
}
return 0;